package com.dong.singletonMode;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * @author DongJiaQi
 * @create 2022/12/20 16:30
 * @Description: 静态类使⽤单例
 */
public class Singleton_00 {
    public static Map<String, String> cache = new ConcurrentHashMap<String, String>();
}
